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        <li class="chapter " data-level="1.1" data-path="../../">
            
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                    MLSQL Stack
            
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        <li class="header">产品信息</li>
        
        
    
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                    MLSQL官方博客
            
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                    MLSQL Stack体验站点
            
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                    所有版本
            
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                    MLSQL Stack版本管理策略
            
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                    MLSQL Stack 2.0.1版发布
            
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                    MLSQL Stack 2.0.0版发布
            
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                    MLSQL Stack 2.0.1 Bug 合集
            
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                    MLSQL Stack 2.0.0 Bug 合集
            
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                    基本安装
            
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                    MLSQL Console 安装
            
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                    MLSQL Console 初始配置
            
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                    MLSQL Engine 安装与配置
            
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                    启动参数详解
            
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                    Local
            
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                    K8s部署
            
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                    Yarn部署
            
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        <li class="header">操作指南</li>
        
        
    
        <li class="chapter " data-level="4.1" data-path="../../analysis-workshop/">
            
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                    Analysis Workshop使用
            
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                    软件界面介绍
            
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                    Admin管理后台之Engine配置
            
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        <li class="chapter " data-level="4.1.3" data-path="../../analysis-workshop/simple-example.html">
            
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                    简单使用示例
            
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                    透视表
            
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                    可视化
            
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        <li class="chapter " data-level="4.1.6" data-path="../../analysis-workshop/window.html">
            
                <a href="../../analysis-workshop/window.html">
            
                    
                    使用窗口进行数据分析
            
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        <li class="chapter " data-level="4.1.7" data-path="../../analysis-workshop/complex-filter.html">
            
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                    复杂组合条件过滤
            
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                    MySQL数据库配置
            
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        <li class="chapter " data-level="4.1.9" data-path="../../analysis-workshop/json-fields.html">
            
                <a href="../../analysis-workshop/json-fields.html">
            
                    
                    Json字段展开
            
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        <li class="chapter " data-level="4.1.10" data-path="../../analysis-workshop/aw-plugin.html">
            
                <a href="../../analysis-workshop/aw-plugin.html">
            
                    
                    用MLSQL为Analysis Workshop开发插件
            
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        <li class="chapter " data-level="4.2" data-path="../../console/">
            
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                    MLSQL语言控制台使用
            
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                    界面简介
            
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                    简单使用示例
            
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        <li class="header">MLSQL语法以及编程教程</li>
        
        
    
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                    MLSQL语法手册
            
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                    Set语法
            
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        <li class="chapter " data-level="5.1.2" data-path="../../lang/load.html">
            
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                    Load语法
            
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        <li class="chapter " data-level="5.1.3" data-path="../../lang/select.html">
            
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                    Select语法
            
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        <li class="chapter " data-level="5.1.4" data-path="../../lang/et_statement.html">
            
                <a href="../../lang/et_statement.html">
            
                    
                    Train/Run/Predict语法
            
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        <li class="chapter " data-level="5.1.5" data-path="../../lang/register.html">
            
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                    Register语法
            
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        <li class="chapter " data-level="5.1.6" data-path="../../lang/save.html">
            
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                    Save语法
            
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        <li class="chapter " data-level="5.1.7" data-path="../../lang/macro.html">
            
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                    宏语法
            
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        <li class="chapter " data-level="5.1.8" data-path="../../lang/include.html">
            
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                    Include语法
            
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        <li class="chapter " data-level="5.1.9" >
            
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                    分支语句
            
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        <li class="chapter " data-level="5.1.10" data-path="../../lang/analyze.html">
            
                <a href="../../lang/analyze.html">
            
                    
                    MLSQL语法解析接口
            
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        <li class="chapter " data-level="5.2" data-path="../../batch/">
            
                <a href="../../batch/">
            
                    
                    MLSQL批处理编程
            
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        <li class="chapter " data-level="5.2.1" data-path="../../datahouse/">
            
                <a href="../../datahouse/">
            
                    
                    MLSQL数仓/数据湖使用
            
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        <li class="chapter " data-level="5.2.1.1" data-path="../../datahouse/hive.html">
            
                <a href="../../datahouse/hive.html">
            
                    
                    Hive加载和存储
            
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        <li class="chapter " data-level="5.2.1.2" data-path="../../datahouse/delta.html">
            
                <a href="../../datahouse/delta.html">
            
                    
                    Delta加载和存储以及流式支持
            
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        <li class="chapter " data-level="5.2.1.3" data-path="../../datahouse/binlog.html">
            
                <a href="../../datahouse/binlog.html">
            
                    
                    MySQL Binlog同步
            
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            </ul>
            
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        <li class="chapter " data-level="5.2.2" data-path="../../datasource/">
            
                <a href="../../datasource/">
            
                    
                    加载和存储多种数据源
            
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        <li class="chapter " data-level="5.2.2.1" data-path="../../datasource/jdbc.html">
            
                <a href="../../datasource/jdbc.html">
            
                    
                    JDBC
            
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        <li class="chapter " data-level="5.2.2.2" data-path="../../datasource/es.html">
            
                <a href="../../datasource/es.html">
            
                    
                    ElasticSearch
            
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        <li class="chapter " data-level="5.2.2.3" data-path="../../datasource/solr.html">
            
                <a href="../../datasource/solr.html">
            
                    
                    Solr
            
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        <li class="chapter " data-level="5.2.2.4" data-path="../../datasource/hbase.html">
            
                <a href="../../datasource/hbase.html">
            
                    
                    HBase
            
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        <li class="chapter " data-level="5.2.2.5" data-path="../../datasource/mongodb.html">
            
                <a href="../../datasource/mongodb.html">
            
                    
                    MongoDB
            
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        <li class="chapter " data-level="5.2.2.6" data-path="../../datasource/file.html">
            
                <a href="../../datasource/file.html">
            
                    
                    Parquet/Json/Text/Xml/Csv
            
                </a>
            

            
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        <li class="chapter " data-level="5.2.2.7" data-path="../../datasource/mlsql_source.html">
            
                <a href="../../datasource/mlsql_source.html">
            
                    
                    jsonStr/script/mlsqlAPI/mlsqlConf
            
                </a>
            

            
        </li>
    

            </ul>
            
        </li>
    
        <li class="chapter " data-level="5.2.3" data-path="../../system_udf/">
            
                <a href="../../system_udf/">
            
                    
                    内置常见UDF
            
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            <ul class="articles">
                
    
        <li class="chapter " data-level="5.2.3.1" data-path="../../system_udf/http.html">
            
                <a href="../../system_udf/http.html">
            
                    
                    http请求
            
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        <li class="chapter " data-level="5.2.3.2" data-path="../../system_udf/vec.html">
            
                <a href="../../system_udf/vec.html">
            
                    
                    常见函数
            
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        </li>
    

            </ul>
            
        </li>
    
        <li class="chapter " data-level="5.2.4" data-path="../../process/">
            
                <a href="../../process/">
            
                    
                    一些有用的内置ET
            
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        <li class="chapter " data-level="5.2.4.1" data-path="../../process/estimator_transformer/TreeBuildExt.html">
            
                <a href="../../process/estimator_transformer/TreeBuildExt.html">
            
                    
                    计算复杂的父子关系
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="5.2.4.2" data-path="../../process/estimator_transformer/RepartitionExt.html">
            
                <a href="../../process/estimator_transformer/RepartitionExt.html">
            
                    
                    改变表的分区数
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="5.2.4.3" data-path="../../process/estimator_transformer/SendMessage.html">
            
                <a href="../../process/estimator_transformer/SendMessage.html">
            
                    
                    如何发送邮件
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="5.2.4.4" data-path="../../process/estimator_transformer/mlsql-watcher.html">
            
                <a href="../../process/estimator_transformer/mlsql-watcher.html">
            
                    
                    数据采集组件mlsql-watcher使用
            
                </a>
            

            
        </li>
    

            </ul>
            
        </li>
    

            </ul>
            
        </li>
    
        <li class="chapter " data-level="5.3" data-path="../../stream/">
            
                <a href="../../stream/">
            
                    
                    MLSQL流编程
            
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        <li class="chapter " data-level="5.3.1" data-path="../../stream/datasource.html">
            
                <a href="../../stream/datasource.html">
            
                    
                    Kafka和MockStream
            
                </a>
            

            
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        <li class="chapter " data-level="5.3.2" data-path="../../stream/kakfa_tool.html">
            
                <a href="../../stream/kakfa_tool.html">
            
                    
                    MLSQL Kafka小工具集锦
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="5.3.3" data-path="../../stream/data_convert.html">
            
                <a href="../../stream/data_convert.html">
            
                    
                    自动将Kafka中的JSON数据展开为表
            
                </a>
            

            
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        <li class="chapter " data-level="5.3.4" data-path="../../stream/query_kafka.html">
            
                <a href="../../stream/query_kafka.html">
            
                    
                    如何高效的AdHoc查询Kafka
            
                </a>
            

            
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        <li class="chapter " data-level="5.3.5" data-path="../../stream/callback.html">
            
                <a href="../../stream/callback.html">
            
                    
                    如何设置流式计算回调
            
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        <li class="chapter " data-level="5.3.6" data-path="../../stream/batch.html">
            
                <a href="../../stream/batch.html">
            
                    
                    如何对流的结果以批的形式保存
            
                </a>
            

            
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        <li class="chapter " data-level="5.3.7" data-path="../../stream/window_wartermark.html">
            
                <a href="../../stream/window_wartermark.html">
            
                    
                    window/watermark的使用
            
                </a>
            

            
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        <li class="chapter " data-level="5.3.8" data-path="../../stream/stream_mysql_update.html">
            
                <a href="../../stream/stream_mysql_update.html">
            
                    
                    如何使用MLSQL流式更新MySQL数据
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="5.3.9" data-path="../../stream/web_console.html">
            
                <a href="../../stream/web_console.html">
            
                    
                    流结果输出到WebConsole
            
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        </li>
    

            </ul>
            
        </li>
    
        <li class="chapter " data-level="5.4" data-path="../../ml/">
            
                <a href="../../ml/">
            
                    
                    MLSQL机器学习编程
            
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        <li class="chapter " data-level="5.4.1" data-path="../">
            
                <a href="../">
            
                    
                    特征工程
            
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        <li class="chapter " data-level="5.4.1.1" data-path="../nlp.html">
            
                <a href="../nlp.html">
            
                    
                    文本向量化
            
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            <ul class="articles">
                
    
        <li class="chapter " data-level="5.4.1.1.1" data-path="../tfidf.html">
            
                <a href="../tfidf.html">
            
                    
                    TFIDF
            
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        <li class="chapter " data-level="5.4.1.1.2" data-path="../word2vec.html">
            
                <a href="../word2vec.html">
            
                    
                    Word2Vec
            
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            </ul>
            
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        <li class="chapter " data-level="5.4.1.2" data-path="../scale.html">
            
                <a href="../scale.html">
            
                    
                    特征平滑
            
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        <li class="chapter " data-level="5.4.1.3" data-path="../normalize.html">
            
                <a href="../normalize.html">
            
                    
                    归一化
            
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        <li class="chapter " data-level="5.4.1.4" data-path="../confusion_matrix.html">
            
                <a href="../confusion_matrix.html">
            
                    
                    混淆矩阵
            
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        <li class="chapter " data-level="5.4.1.5" data-path="../some_extract.html">
            
                <a href="../some_extract.html">
            
                    
                    QQ/电话/邮件抽取
            
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        <a href="../.." >Quantile</a>
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                                <div id="anchor-navigation-ex-navbar"><i class="fa fa-navicon"></i><ul><li><span class="title-icon "></span><a href="#quantile"><b></b>Quantile</a></li><ul><li><span class="title-icon "></span><a href="#&#x5982;&#x4F55;&#x5728;&#x9884;&#x6D4B;&#x65F6;&#x4F7F;&#x7528;"><b></b>&#x5982;&#x4F55;&#x5728;&#x9884;&#x6D4B;&#x65F6;&#x4F7F;&#x7528;</a></li></ul></ul></div><h1 id="quantile"><a name="quantile" class="anchor-navigation-ex-anchor" href="#quantile"><i class="fa fa-link" aria-hidden="true"></i></a>Quantile</h1>
<p> Quantile&#x4F7F;&#x7528;&#x66F4;&#x52A0;&#x7B80;&#x5355;&#xFF0C;&#x4F60;&#x53EA;&#x8981;&#x6307;&#x6307;&#x5B9A;bucket&#x6570;&#x76EE;&#x5373;&#x53EF;&#x3002;</p>
<p> &#x5047;&#x8BBE;&#x6211;&#x4EEC;&#x6709;&#x5982;&#x4E0B;&#x6570;&#x636E;&#xFF1A;</p>
<pre><code class="lang-sql"><span class="hljs-comment">-- create test data</span>
<span class="hljs-keyword">set</span> jsonStr=<span class="hljs-string">&apos;&apos;&apos;
{&quot;features&quot;:[5.1,3.5,1.4,0.2],&quot;label&quot;:0.0},
{&quot;features&quot;:[5.1,3.5,1.4,0.2],&quot;label&quot;:1.0}
{&quot;features&quot;:[5.1,3.5,1.4,0.2],&quot;label&quot;:0.0}
{&quot;features&quot;:[4.4,2.9,1.4,0.2],&quot;label&quot;:0.0}
{&quot;features&quot;:[5.1,3.5,1.4,0.2],&quot;label&quot;:1.0}
{&quot;features&quot;:[5.1,3.5,1.4,0.2],&quot;label&quot;:0.0}
{&quot;features&quot;:[5.1,3.5,1.4,0.2],&quot;label&quot;:0.0}
{&quot;features&quot;:[4.7,3.2,1.3,0.2],&quot;label&quot;:1.0}
{&quot;features&quot;:[5.1,3.5,1.4,0.2],&quot;label&quot;:0.0}
{&quot;features&quot;:[5.1,3.5,1.4,0.2],&quot;label&quot;:0.0}
&apos;&apos;&apos;</span>;
<span class="hljs-keyword">load</span> jsonStr.<span class="hljs-string">`jsonStr`</span> <span class="hljs-keyword">as</span> <span class="hljs-keyword">data</span>;
<span class="hljs-keyword">select</span> features[<span class="hljs-number">0</span>] <span class="hljs-keyword">as</span> a ,features[<span class="hljs-number">1</span>] <span class="hljs-keyword">as</span> b <span class="hljs-keyword">from</span> <span class="hljs-keyword">data</span>
<span class="hljs-keyword">as</span> data1;
</code></pre>
<p>&#x73B0;&#x5728;&#x6211;&#x4EEC;&#x5F97;&#x5230;&#x4E86;a,b&#x4E24;&#x4E2A;&#x5B57;&#x6BB5;&#xFF0C;&#x6211;&#x4EEC;&#x5BF9;&#x4ED6;&#x4EEC;&#x5206;&#x522B;&#x8FDB;&#x884C;&#x5207;&#x5206;&#xFF0C;&#x8F6C;&#x5316;&#x4E3A;&#x79BB;&#x6563;&#x503C;&#xFF1A;</p>
<pre><code class="lang-sql">train data1 as Discretizer.`/tmp/model`
where method=&quot;quantile&quot;
and `fitParam.0.inputCol`=&quot;a&quot;
and `fitParam.0.outputCol`=&quot;a_v&quot;
and `fitParam.0.numBuckets`=&quot;3&quot;
and `fitParam.1.inputCol`=&quot;b&quot;
and `fitParam.1.outputCol`=&quot;b_v&quot;
and `fitParam.1.numBuckets`=&quot;3&quot;;
</code></pre>
<p>&#x8FD9;&#x91CC;&#xFF0C;&#x6211;&#x4EEC;&#x4F7F;&#x7528;fitParam.0 &#x8868;&#x662F;&#x7B2C;&#x4E00;&#x7EC4;&#x5207;&#x5206;&#x89C4;&#x5219;&#xFF0C;fitParam.1&#x8868;&#x793A;&#x7B2C;&#x4E8C;&#x7EC4;&#x5207;&#x5206;&#x89C4;&#x5219;&#x3002;fitParam.0 &#x8D1F;&#x8D23;&#x5BF9;a&#x5207;&#x5206;&#xFF0C;fitParam.1&#x8D1F;&#x8D23;&#x5BF9;b&#x5207;&#x5206;&#x3002;</p>
<blockquote>
<p>&#x8BE5;ET&#x76EE;&#x524D;&#x6BD4;&#x8F83;&#x7279;&#x6B8A;&#x67E5;&#x770B;&#x5207;&#x5206;&#x7ED3;&#x679C;&#x9700;&#x8981;&#x4F7F;&#x7528;register&#x8BED;&#x6CD5;&#x6CE8;&#x518C;&#x51FD;&#x6570;&#x3002;
&#x9700;&#x8981;&#x6CE8;&#x610F;&#x7684;&#x662F;&#xFF0C;spark 2.4.x &#x8981;&#x6C42;outputCol&#x5FC5;&#x987B;&#x8BBE;&#x7F6E;&#x3002;&#x6240;&#x4EE5;&#x6211;&#x4EEC;&#x8BBE;&#x7F6E;&#x4E0B;&#x3002;</p>
</blockquote>
<p>&#x53C2;&#x6570;&#x63CF;&#x8FF0;&#xFF1A;</p>
<table>
<thead>
<tr>
<th style="text-align:left">parameter</th>
<th style="text-align:left">default</th>
<th style="text-align:left">comments</th>
</tr>
</thead>
<tbody>
<tr>
<td style="text-align:left">method</td>
<td style="text-align:left">bucketizer</td>
<td style="text-align:left">support: bucketizer, quantile</td>
</tr>
<tr>
<td style="text-align:left">fitParam.${index}.inputCols</td>
<td style="text-align:left">None</td>
<td style="text-align:left">double&#x7C7B;&#x578B;&#x5B57;&#x6BB5;</td>
</tr>
<tr>
<td style="text-align:left">fitParam.${index}.splitArray</td>
<td style="text-align:left">None</td>
<td style="text-align:left">bucket array&#xFF0C;-inf ~ inf &#xFF0C;size should &gt; 3&#xFF0C;[x, y)</td>
</tr>
</tbody>
</table>
<h2 id="&#x5982;&#x4F55;&#x5728;&#x9884;&#x6D4B;&#x65F6;&#x4F7F;&#x7528;"><a name="&#x5982;&#x4F55;&#x5728;&#x9884;&#x6D4B;&#x65F6;&#x4F7F;&#x7528;" class="anchor-navigation-ex-anchor" href="#&#x5982;&#x4F55;&#x5728;&#x9884;&#x6D4B;&#x65F6;&#x4F7F;&#x7528;"><i class="fa fa-link" aria-hidden="true"></i></a>&#x5982;&#x4F55;&#x5728;&#x9884;&#x6D4B;&#x65F6;&#x4F7F;&#x7528;</h2>
<p>&#x4EFB;&#x4F55;ET&#x90FD;&#x5177;&#x5907;&#x5728;&quot;&#x8BAD;&#x7EC3;&#x65F6;&#x5B66;&#x4E60;&#x5230;&#x7ECF;&#x9A8C;&quot;&#x8F6C;&#x5316;&#x4E3A;&#x4E00;&#x4E2A;&#x51FD;&#x6570;&#xFF0C;&#x4ECE;&#x800C;&#x53EF;&#x4EE5;&#x4F7F;&#x5F97;&#x4F60;&#x628A;&#x8FD9;&#x4E2A;&#x529F;&#x80FD;&#x90E8;&#x7F72;&#x5230;&#x6D41;&#x5F0F;&#x8BA1;&#x7B97;&#xFF0C;API&#x670D;&#x52A1;&#x91CC;&#x53BB;&#x3002;&#x540C;&#x65F6;&#xFF0C;&#x90E8;&#x5206;ET&#x8FD8;&#x6709;batch predict&#x529F;&#x80FD;&#xFF0C;
&#x53EF;&#x4EE5;&#x8BA9;&#x5728;&#x6279;&#x5904;&#x7406;&#x505A;&#x66F4;&#x9AD8;&#x6548;&#x7684;&#x9884;&#x6D4B;&#x3002;</p>
<p>&#x5BF9;&#x4E8E;ET NormalizeInPlace &#x800C;&#x8A00;&#xFF0C;&#x6211;&#x4EEC;&#x8981;&#x628A;&#x5B83;&#x8F6C;&#x5316;&#x4E3A;&#x4E00;&#x4E2A;&#x51FD;&#x6570;&#x975E;&#x5E38;&#x5BB9;&#x6613;&#xFF1A;</p>
<pre><code class="lang-sql">
register Discretizer.`/tmp/model` as convert;
</code></pre>
<p>&#x901A;&#x8FC7;&#x4E0A;&#x9762;&#x7684;&#x547D;&#x4EE4;&#xFF0C;Discretizer &#x5C31;&#x4F1A;&#x628A;&#x8BAD;&#x7EC3;&#x9636;&#x6BB5;&#x5B66;&#x4E60;&#x5230;&#x7684;&#x4E1C;&#x897F;&#x5E94;&#x7528;&#x8D77;&#x6765;&#xFF0C;&#x73B0;&#x5728;&#xFF0C;&#x53EF;&#x4EE5;&#x4F7F;&#x7528;<code>convert</code>&#x51FD;&#x6570;&#x4E86;&#x3002;</p>
<pre><code class="lang-sql"><span class="hljs-keyword">select</span> <span class="hljs-keyword">convert</span>(<span class="hljs-built_in">array</span>(<span class="hljs-number">7</span>,<span class="hljs-number">8</span>)) <span class="hljs-keyword">as</span> features <span class="hljs-keyword">as</span> <span class="hljs-keyword">output</span>;
</code></pre>
<p>&#x8F93;&#x51FA;&#x7ED3;&#x679C;&#x4E3A;&#xFF1A;</p>
<pre><code>features
[1,1]
</code></pre><p>&#x90FD;&#x88AB;&#x5206;&#x5728;2&#x5206;&#x533A;&#x91CC;&#x3002;</p>
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